This is not the same as saying the text of the Bible has
never changed since this time. For one, disputed interpretations of text
and the centrality of certain passages over others are constants in Bible-based
religions. Past a certain point, this is inevitable since Biblical passages
contradict each other—they aren't, after all, a coherent and comprehensive
collection of ancient Hebrew scriptures—and that forces believers
to choose between them. For another, Hebrew writing involves a script
in which vowels were originally not included. That's why God's name JHWH
as revealed in Exodus is written variously as Jehovah, Yahweh and the
suffix -iah seen on the end in many Hebrew names (Jeremiah,
Nehemiah, Hezekiah). Because vowels weren't added to
JHWH until much later, the Hebrew text of the Bible entailed a certain
fluidity of text it wouldn't have had otherwise.